Electric telegraphic apparatus.



E. J. GALYEAN.

ELECTRIC TELEGRAPHIC APPARATUS A 1 7 APPLICATION FILED FEB. 7, I9l3.1,180 836.

Patented Apr. 2",1916.

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LVLtmeoozo E. J. GALYEAN.

ELECTRiC TELEGRAPHIC APPARATUS.

APPLICATION FILED FEB. 7. 1913- v I Patented Apr. 20, 19M).

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APPLHLATION FILED FEB. 7, 1913. 1 I v Q Pa'nemefi Apr. 25, 1:116,

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E. J. GALYEAN ELECTREC TELEGRAPHIC APPARATUS.

APPLICATION FILED FEB. 7. 1913.

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EDWARD J. GALYEAN, OF DETROIT, MICHIGAN.

ELECTRIC TELEGRAPHIC APPARATUS.

Specification of Letters Patent.

Patented Apr. 25, 1916.

Application filed February 7, 1913. Serial No. 746,930.

To all whom it may concern:

Be it known that I, EDWARD J. GALYEAN, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented cer-- tain new and useful Improvements inElectric Telegraph Apparatus, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to an electric telegraph apparatus and moreespecially to an adaptation thereof for transmitting a picture, drawing,chart, diagram or the like.

The invention consists in the matters hereinafter set forth and pointedout in the claims. y

In the drawings, Figure 1 is a view in elevation, partially broken away,and in section, of a receiving instrument that embodies features of theinvention; Fig. 2 is a plan view of the receiving instrument; Fig. 3 isa view in side elevation of a transmit ting instrument that forms partof the invention; Fig. 4 is a view, largely. diagrammatic, showing theconnections and circuits of the a paratus; Figs. 5 and 6 are views indetail of a plate prepared for transmission; and Fig. 7 is'a view inelevation of a modification of the receiving instrument.

Referring to the drawings the transmitting apparatus consists of a mainframe 1 in which a cylinder 2, is journaled and is driven from a clockmechanism indicated at 3, or other preferred motor, through a gear train4. A feed screw 5 in parallel. relation to the cylinder, likewiseactuated by the motor 3, shifts a carriage 6 across the cylinder fromend to end thereof in such manner that an electric contact needle 7yieldingly bears against the face of the cylinder or a sheet appliedthereto. Preferably the car'- riage travels on guide wheels 8 that runon I a track bar 9 of the main frame with an out-' board idler 10 thattraverses a fiat plate 11 of the frame. For convenience of manipulationand setting of the carriage at any point along the cylinder, theconnection between the feed screw 5 and carriage is made by a member 12vthat is suitably pivoted as on a bar 13 to the carriage and is providedwith a half-nut that is forced against the screwthread yieldingly by aproperly disposed spring, such as indicated at 14 or the like, while ahandle 15 permits the release and replacement of the nut as desired. A

spring finger 16 acts as a latch hold the member 12 in raised positionwhile shifting the carriage if desired.

A synchronizing disk 17 is secured on a ]0L1I'I13.l of the cylinder 2 orotherwise mounted to revolve in unison therewith and has a periphery ofinsulating material broken by a contact bar 18. A pair of spring fingers19 and 20 mounted in insulated relation on the main frame, are arrangedto simultaneously contact with the bar 18 and thereby close a circuitthrough a conductor 21 and ground wire 22. The field coil 23 of anelectro-magnet is connected by the conductor 21 in series with thespring fingers and with the main lead 24 of a main circuit. Whenenergized by this circuit the field coils hold a detent arm 25out ofengagement with astop wheel 26 that is mounted to turn in unison withthe synchronizing disk and cylinder.

The contact needle 7 which is preferably carried by a lever 27 withadjusting screw 28 whereby its pressure against the periphery of thecylinder 2 may be regulated, is suitably insulated from the carriage andis connected to a transmitting line 29.

r A. sheet 30 of conducting material has a map, chart, picture, diagram,message or the like as indicated at 33 made on its surface bynon-conducting ink, pigment or the like. The receiving instrument has acylinder 34 journaled on a main frame 35 and driven from a suitablemotor 36 through transmission mechanism 37. A synchronizing disk 38 issecured 'to the shaft of the cylinder or otherwise connected to rotatein unison therewith and has a periphery of insulating material broken bya bridge or connecting strip 39. A pair of spring fingers or contactmembers are mounted in insulated relation on the main frame 35 to bearagainst the disk 38 and be brought into series by simultaneous contactwith the strip 39. One of the fingers 40 is connected to ground by aconductor 41. The other finger is connected to the main line 24 througha field coil 42 of an electro-magnet and a conductor 43. A detent arm 44is normally held out of engagement with a detent wheel 45 that issecured or mounted to rotate in unison with the synchronizing disk 38and cylinder 34, when thefield coils 42 of a magnet 46 are energized.Asa result of this con- 1 nection between the synchronizing disks 17 and38 whenboth cylinders are in operation and the cylmder of the receivertends to vary from the speed of the other cylinder, the circuit throughthe field coil of the electro-magnet of the receiver releases the detentand arrests the cylinder with the strip 39 in contact with the springarms 40, holding the cylinder in this position until the circuit iscompleted by the revolution of the. transmitter synchronizing disk intosuch position that the contact or spring arms thereof are connected toclose the circuit. This insures equal speeds of the receiving andtransmitting cylinders.

A carriage 47 is arranged to traverse the main frame 35, being supportedon guide wheels 48 that run on a guide rod 49 and an idler 50 travelingon a track bar 51. A driving member carries a half-nut that normallyengages a driving screw 53 operated in .timed relation to the cylinder3% by the transmission mechanism 37. For adjustment a handle 5% permitsthe instant release of the carriage for shifting and resetting.

A stylus supplied from a suitable reservoir is mounted on an uprightspindle 56 in such way as to traverse the cylinder 34 when the carriage47 is moved along its guides. The spindle is reciprocable through aguide bearing in the carriage and carries a disk 57 which operates as anarmature to an electro-magnet 58. The field coils of the latter are inseries through the lines 2+ and 29 with the contact needle 7 of thetransmitter so that when the contact of the needle with the conductingsurface of a sheet applied to the transmitter cylinder energizes thecoils of the magnet the stylus is held out of contact with the surfaceof the cylinder '34 or a record sheet placed thereon. Vhen the circuitis broken, a suitably disposed spring 59 projects the stylus intoyielding contact with such sheet. As a matter of good constructionthe'spring 59 may have the tension varied by the adjustment of a handnut 60. Its movement is limited by an adjustable check or stop, nut 62which is-held from accidental turning by a spring 61. As a furtherdetail, the stylus may be supplied from a reservoir 63 mounted on thespindle and suitably connected as by a tube or duct 64 to supply thestylus. If preferred, the recording stylus may be normally held out ofcontact with the recording sheet by a supporting spring and be projectedagainst the cylinder by the action of an electro-magnet.Suchconstruction is shown in Fig. 7 in which a. stylus-carrying spindle65 is-normally supported on the carriage of the machine out of contactof the cylinder by asuitably disposed spring 66 whose tension may bechanged by a hand nut (37. The coil of a magnet 68 encircling thespindle is in series with the conductors 24 and 29 and when excited themagnet depresses the spindle 65 through the agency of an armature diskor plate 69 secured on the spindle.

In operation a properly prepared transmitting sheet is placed on thecylinder of the transmitter and a recording sheet secured on thecylinder of the receiver. \Vhen the transmitting receiver is released bypassage of current through a synchronizing disk and its connections, sothat it revolves under the impetus of the transmitter motor, thecylinder of the receiving"machine is likewise released and driven insynchronism with the transmitter cylinder as hereinbetore described.\Vhenever the lines of the diagram or the like on the transmitting sheetbreak the circuit through the contact needle, the recording stylus iscorrespondingly moved and such movement registered on the receivingsheet and thus any matter that is traced on the transmitting sheet isreproduced on the receiving sheet. The synchronizing mechanism isprovided for accurate reproduction as it controls the receiving cylinderso that the latter travels in synchronism with the cylinder of thetransmitter.

The apparatus is extremely simple, not liable to disarrangement orexcessive wear, and isreadily connected into the lines of an ordinarytelegraph system. I

\Yhile herein shown in an electric telegraph system having conductors,the device is also adaptable for use in wireless telegraphy, theimpulses from one aerial being given through the transmitter aerialsecuring them and controlling the receiver as in the other system.

Obviously, changes in the details of construction may be made withoutdeparting from the spirit of my invention and I do not care to limitmyself to any particular form or arrangement of parts.

lVhat I claim is 1. An electric telegraph system comprising a sendingcircuit including a transmitter with a rotatable carrier member,mechanism for driving the member, a carriage adapted to traverse thecarrier, an electrical contact member on the carriage bearing yieldinglagainst the carrier, detent means dapted to arrest the carrier onceduring each revolution, an electric magnet adapted when energized by thecircuit to prevent engagement of the detent mechanism with the carrier,synchronizing means geared to rotate in unison with the carrier providedwith a contact strip, a pair of members .bearing againstthesynchronizing means and coacting'with the contact strip thereof toclose the sending circuit through the electro-magnet when the detentmechanism is affected, a receiver having a rotatable carriage member,mechanism for driving the member, a carriage operated by the mechanismto traverse the carrier, a stylus on the carriage and the othercontrolled by the electro-magnet to move toward and away from thecarrier in response to impulses of the magnet, detent mechanism adaptedto lock with the carrier Once during each revolution, an electro-magnetadapted when energized to hold the detent mechanism inactive,synchronizing means geared to rotate in unison with the wheel carrierand provided with a contact strip, a pair of members in series with thesending circuit with the members of the transmitter synchronizing means,coacting with the strip of the transmitter. synchronizing means to closethe circuit through the electro-magnet controlling the detent, and meansfor energizing the circuit.

2. An electric telegraph system comprising a sending circuit thatincludes a transmitter consisting of a rotatable carrier member,mechanism for driving the member, a carriage adapted by the mechanism totraverse the carrier, an electric contact member on the carriage bearingyieldingly against the carrier, a detentwheel secured to the carrier toturn in unison therewith, a detent adapted to lock with the wheel onceduring each revolution, an'electromagnet adaptedwhen energized by thecircuit to hold the detent vfrom engaging with the wheel, asynchronizing disk secured to rotate in-unisonwith the Wheel and carrierprovided with a contact strip on its periphery, a pair of membersbearing against the disk, and co-acting with the contact strip thereofto close the sending circuit through the electro-magnet as the detentand wheel move into engaging relation, a receiver having a rotatablecarrier member, mechanism for driving the member, a carriage operated bythe mechanism to traverse the carrier, a stylus on the carriagecontrolled by the electromagnet to move toward and away from the carrierin response to impulses of the magnet, a detent wheel secured to rotatein unison with the carrier, a detent adapted to lock with the wheel onceduring each revolution, an electromagnet adapted when energized to holdthe detent from engaging with the wheel, a synchronizing disk secured torotate in unison with the wheel and carrier and provided with a contactstrip, a pair of members in series through the sending circuit with themembers of the transmitter synchronizing disk, co-acting with the stripof the transmitter synchronizing disk to close the circuit through theelectromagnet controlling the detent, and means for energizing thecircuit.

In testimony whereof I afiix my signature in presence of two witnesses.

EDWARD J. GALYEAN.

Witnesses:

ANNA M. DORR, OTTO F. BARTHEL.

Copies of this patent may be obtained for fiv'e cents each, byaddressing the commissions: of Potato,

' Washington, D. 0.

